Pad-mounted Transformer
Compact outdoor pad-mount distribution transformer. Utility-grade, tamper-resistant, for underground distribution networks.
Technical Parameters
Standard parameter ranges for this model. Special requirements can be assessed by our engineering team — contact us for custom specifications.
| Parameter | Standard Range |
|---|---|
| Rated capacity | 50–2500 kVA |
| Primary voltage | 6, 10, 11, 15, 20, 35 kV |
| Secondary voltage | 0.4 kV |
| Frequency | 50 Hz or 60 Hz |
| Phase | 3-phase |
| Vector group | Dyn11, Dyn1 |
| Impedance | 4.0% – 6.0% |
| Cooling method | ONAN |
| Tap changer | Off-circuit (OCTC) ±2×2.5% |
| Insulation level | LI75AC35 / LI95AC50 / LI125AC55 |
| Temperature rise | 65K (oil); 65K (winding) |
| No-load loss | Per IEEE C57.12.00 / IEC 60076 |
| Load loss | Per IEEE C57.12.00 / IEC 60076 |
| Noise level | ≤55 dB |
| Protection level | IP44 (standard); IP54 available — tamper-resistant |
| Applicable standards | IEEE C57.12.00, IEEE C57.12.34, IEC 60076 |
| Ambient temperature | -25°C to +40°C |
| Altitude | ≤1000m |
| Accessories | Load-break switches, fuse, temp gauge, oil level, grounding |
Product Advantages
Verifiable benefits — not empty claims. Here’s exactly what you get when you choose JINXING.
Tamper-Resistant
Locked, tamper-resistant enclosure — utility-grade security.
Outdoor Rated
IP44/IP54 enclosure for outdoor pad-mount installation.
Full Routine Test
IEEE/IEC tests on every unit.
48h Quote
Standard products in 48 hours.
English Docs
Complete documentation in English.
OEM Support
Private label for utility distributors.
Product construction and internal arrangementApplications
Where this transformer is used — connecting the product to real-world industry applications.
Underground Distribution
Utility underground distribution networks.
Urban Area
Compact outdoor installation in urban areas.
Residential
Residential subdivision power supply.
Industrial
Industrial site distribution — outdoor pad-mount.
Quality Proof — 9-Step Manufacturing Process
Every transformer passes through 9 quality-controlled stages, from raw material to shipping. Full traceability with documentation at every step.
Material Inspection
Raw material verification — core steel, copper, oil, accessories checked against certificates before production.
Core Cutting
CNC step-lap core cutting for low-loss grain-oriented silicon steel. Core loss measured before assembly.
Winding
Controlled winding tension, turn-count verification, and insulation paper application for each coil.
Assembly
Core-coil assembly with dimensional checks for fit, clearance, and clamping force.
Vacuum Drying
High-vacuum drying ovens remove moisture from insulation before oil impregnation.
Oil Filling
Filtered insulating oil with breakdown voltage >70kV/2.5mm and moisture <10ppm.
Final Testing
Full routine test per IEC 60076-1 — insulation, resistance, ratio, losses, withstand.
Packing
Sea-worthy export packing with shock-fixed crating for ocean shipping.
Shipping
On-time delivery with documentation — test reports, drawings, manuals in English.
Need a Custom Transformer Solution?
Our engineering team can assess non-standard voltage, capacity, impedance, or environmental conditions — and deliver a full proposal within 48 hours.